I've had an Emerson CQC-7, Specwar, and have a mini Commander, and liked the 7 best for EDC.
You can get Emersons for far less than $100 on ebay and any of the forums.
I have no doubts that the S30V Spydercos are some of the best production knives made, but don't have exerience with them.
edited to add: if you get a Benchmade do yourself a favor and get the M2 steel, its worth it!